#210A00
Closest named color: Very Dark Brown (#1D0200). oklch(18% 0.047 51.1), rgb(33, 10, 0).
Aa
White text reads best on this color (18.95:1).
About this color
#210A00 is a very dark, muted brown. In OKLCH its lightness is 18%, its chroma 0.047 and its hue 51°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.033 away. White text reads best on it, at 18.95:1.
| Hue family | Browns |
| Lightness | very dark (18%) |
| Chroma | muted (0.047) |
| Temperature | warm |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.10:1 |
| White text | 18.95:1 |
Values
| HEX | #210A00 |
| RGB | rgb(33, 10, 0) |
| HSL | hsl(18, 100%, 6%) |
| OKLCH | oklch(18% 0.047 51.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #210A00 | 18.95:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #210A00 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #210A00 text on white | 18.95:1 | AAA | Lc 105.2 | Preferred for body text |
| #210A00 text on black | 1.10:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 950.
-
Step 50
50
#FAF4F1
oklch(97.1% 0.008 48.7)
-
Step 100
100
#F3E7E0
oklch(93.6% 0.016 52.6)
-
Step 200
200
#EBD4C7
oklch(88.5% 0.031 51.5)
-
Step 300
300
#DFB7A1
oklch(80.9% 0.055 50.4)
-
Step 400
400
#CD916D
oklch(70.7% 0.088 51.8)
-
Step 500
500
#BF7446
oklch(63.1% 0.113 51)
-
Step 600
600
#AB5B25
oklch(55.7% 0.124 51.1)
-
Step 700
700
#924A17
oklch(49% 0.115 51.1)
-
Step 800
800
#773D17
oklch(42.7% 0.095 50.4)
-
Step 900
900
#603519
oklch(37.7% 0.074 51.7)
-
Step 950
950 (this color)
#210A00
oklch(18% 0.047 51.1)
#210A00 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #110D00 | 0.039 |
| Deuteranopia (no green cones) | #161300 | 0.038 |
| Tritanopia (no blue cones) | #250507 | 0.028 |
| Achromatopsia (no color) | #111111 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #210A00
#210A00
oklch(18% 0.047 51.1)
- #00141E
#00141E
oklch(17.9% 0.036 230)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #210A00, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.033
- Almost Black #070D0D ΔE 0.062
- Dark Maroon #3C0008 ΔE 0.072
- Dark Brown #341C02 ΔE 0.075
- Rich Navy #001219 ΔE 0.079
- Deep Brown #410200 ΔE 0.079
- Rich Black #0D1B2A ΔE 0.090
- Chocolate Brown #411900 ΔE 0.093
Use #210A00 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.